Nu, what depths was this shot at? Particularly those deeper parts when the image is more dark blue, and the reds are getting funky pink

Hi!In the beginning part the beautiful reef shot I shoot on shallow depth between 3-8 m but the schooling fish shot was deep about 20-30 m.Usually I have no funky pink rock problem with shallow depth but when go deeper sometime I can see that problem too but I try to re-do manual white balance adjustinga few times and look at the result in live-view LCD then shifting white balance little bit :)I think DSLR vdo has this funky pink rock less than camcorder